Total Bridges
27,743
Public highway bridges in Illinois
State profile · Near median Poor share
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Illinois, based on the FHWA National Bridge Inventory.
Data updated May 2026
Total Bridges
27,743
Public highway bridges in Illinois
Good Condition
41.2%
11,426 bridges rated 7-9
-8.8pp vs 50% benchmark
Poor Condition
7.9%
2,186 bridges whose lowest applicable component is rated 0-4
0.9pp vs national avg 7.0%
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Adjacent states by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Illinois on the same metric.
RI
NE
IL
MA
MO
Six lowest-condition bridges in Illinois, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
Over: DRAINAGE CANAL
2.2 MI E MEYER, Adams, IL
Over: E FK MAZONRIVER
0.05 MI W CH 16, Grundy, IL
Over: WILSON CREEK
NE-35-T3NR2E, Fulton, IL
Over: KING CREEK
W EDGE OF MINERAL, Bureau, IL
Over: DRAINAGE DITCH
3.5 MI NE DIETERICH, Effingham, IL
Over: BIG CREEK
NE EDGE MT ZION, Macon, IL
Over: E FORK OTTER CREEK
4 MI W OF NILWOOD, Macoupin, IL
Over: BRANCH OF SILVER CRK
1.25 M W ILL 4, Madison, IL
Over: CAHOKIA DIVERSN CNL
3 M N 270, Madison, IL
Over: Mooney Creek
Just N. of IL 143, Madison, IL
Over: SAND CREEK
2.8 MI. W. GRANTFORK, Madison, IL
Over: TURKEY CREEK
0.6 MI S ODIN, Marion, IL
Over: SANDY CR
0.1 W OF ILL 26, Marshall, IL
Over: TURKEY CREEK
1.0 MI N LEXINGTON, McLean, IL
Over: LITTLE CREEK
1.5 MI NE IRVING, Montgomery, IL
Over: WOODS CREEK
2.98M W IL 111, Morgan, IL
Over: BR. LEAF RIVER
2.0 NE FOR RESTON, Ogle, IL
Over: EAGLE CREEK
5.4 W POLO, Ogle, IL
Over: STREAM
2.0 MI NNW HAMMOND, Piatt, IL
Over: STREAM
1.0 MI NE LA PLACE, Piatt, IL
Over: CACHE RIVER OVERFLOW
3.2 MI S UNION CO, Pulaski, IL
Over: DRNG TO CAHOKIA CNL
0.1 M N OLD US 40, St. Clair, IL
Over: Reinhardt SLOUGH
1.4M E OF JCT IL 4, St. Clair, IL
Over: ENGLE CREEK
1.65MI N U.S.RTE 50, St. Clair, IL
Over: CRANE CREEK TRIB
4 MI W OF DELAVAN, Tazewell, IL
Over: JORDAN CREEK
N OF FAIRMOUNT, Vermilion, IL
Over: FEATHER CREEK
1.5 MI N MUNCIE, Vermilion, IL
Over: BNSF RR (079039A)
0.8MI N JCT US 34&67, Warren, IL
Over: ROCK RIVER
AT HILLSDALE, Whiteside, IL
Over: LITTLE ROCK CREEK
7 MI N MORRISON, Whiteside, IL
Over: DRAINAGE DITCH
.05 S WISC ST LN, Winnebago, IL
Over: DRY CREEK
.32 MI N MCCURRY RD, Winnebago, IL
Over: DRY CREEK
.32 MI N MCCURRY RD, Winnebago, IL
Over: BR OF KENT CREEK
0.3 MI W OF MERIDIAN, Winnebago, IL
Over: CURTIS CREEK
S CITY LIMITS QUINCY, Adams, IL
Over: ADAMS CREEK
IN SEATONVILLE, Bureau, IL
Over: RUSH CREEK
3.1 MI S JO DAV CO, Carroll, IL
Over: OTTER CREEK
3 MI SW MILLEDGEVILL, Carroll, IL
Over: STREAM
W OF STALEY'S, Champaign, IL
Over: STREAM
2 MI E OF RANTOUL, Champaign, IL
Over: TOWN BRANCH
E EDGE CHARLESTON, Coles, IL
Over: KICKAPOO CREEK
1.0 MI S OF AIRPORT, Coles, IL
Over: RR - BRC
0.3 M NE ILL 50, Cook, IL
Over: POPLAR CREEK
.06 M W IL 59, Cook, IL
Over: N BR CHICAGO RIVER
0.4 M S US 14, Cook, IL
Over: DEER CREEK
0.5 M W I94 P2, Cook, IL
Over: PEDESTRAIN UNDERPASS
5300 N.AND 800 W., Cook, IL
Over: N&W RR
0.3 M SE ILL 7 P26, Cook, IL
Over: N&W RR
0.3 M SE ILL 7 P26, Cook, IL
Over: LONG POINT CREEK
4.5 M NE WAYNESVILLE, De Witt, IL
Over: S BR KISHWAUKEE RIV.
W EDGE GENOA, DeKalb, IL
Over: UNNAMED CREEK
0.3 MI. W. KIRKLAND, DeKalb, IL
Over: DRAINAGE DITCH
.25 MI N OF GALTON, Douglas, IL
Over: DRAINAGE DITCH
.25 MI N OF GALTON, Douglas, IL
Over: DRAINAGE DITCH
6 MI E OF ARCOLA, Douglas, IL
Over: SCATTERING FORK
0.9 MI N of 700N, Douglas, IL
Showing 10,551-10,600 of 27,743 bridges
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.